Making a good cover letter

The best book covers fire on all of these cylinders. Take, for example, the cover of Cynthia Kadohata’s The Thing About Luck (Atheneum). For the book, it promises a vital, careful story. The vivid yellow background bristles with energy, contained by the ordered symmetry of the pattern of pebbles, and the narrative, straightforward and honest, follows suit. For the publisher, the uncommon palette and harmonic composition establish something iconic and distinct. And for the reader, a single event in the story becomes a metaphor for broader themes. The siblings, in diametric corners, are in opposition and in balance, and dedicated to a common purpose. Such a cover is the complete package. What more could you ask for?